iojs/io.js — pull request #184 by bnoordhuis (2014-12-19 22:50:27+00:00)
Title: lib: micro-optimize url.resolve()

Replace the call to Array#splice() with a faster open-coded version
that creates less garbage.

Add a new benchmark to prove it. With the change applied, it scores
about 5% higher and that is nothing to sneeze at.

R=@chrisdickinson